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Now showing items 41-50 of 100
A grid-connected HVDC shunt tap based on series-input parallel-output DC-AC multi-module 2-level voltage source converters
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Tapping-off a small amount of power from an HVDC transmission line to a three-phase local grid can be achieved by using shunt or series HVDC taps. This paper proposes a new grid-connected HVDC shunt tap. The proposed tap ...
Torque ripple alleviation of a radial magnetic gearbox using step skewing approach
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Recently, magnetic gearboxes (MGBs) are serious contenders to their conventional mechanical counterparts in terms of reduced maintenance requirements, improved reliability, tolerance to mechanical inaccuracies, and inherent ...
Indirect field oriented control of five-phase induction motor based on SPWM-CSI
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Three-phase current source inverter (CSI)-based induction motor (IM) drives are attractive in MV applications since they feature a simple inverter structure, a lower switching dv/dt, and a reliable short circuit protection. ...
Cogging torque reduction of axial magnetic gearbox using pole pairing technique
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Magnetic gearbox (MGB) becomes an attractive research topic in mechanical transmission as it offers significant advantages over mechanical gears such as contactless power transfer, high gear ratios, inherent overload ...
An asymmetrical six phase induction machine for flywheel energy storage drive systems
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Energy storage systems have become an essential part of power utilities due to their capability of providing high level of power quality and stability. Flywheel energy storage systems (FESSs) are now employed with numerous ...
Enhancement of the extracted maximum power of PV array during partial shading using switched PV-based system
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
This paper proposes a switched PV approach to enhance the extracted maximum power from PV array during partial shading condition. The proposed system is simple and cost effective. However, it may provide lower power ...
The transition arm multilevel converter - A concept for medium and high voltage DC-DC transformers
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
This paper proposes a dc/ac converter topology where each phase leg comprises a conventional series switch valve in one arm and a series connection of half-bridge chopper cells in the other arm. Operation with trapezoidal ...
A grid-connected switched PV array
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
In this paper, a grid-connected version of the switched PV array will be presented. The PV array consists of n parallel-connected strings and m series-connected modules per string, i.e. an array with a dimension of (m - ...
Modified modulation scheme for photovoltaic fed grid-connected three-phase boost inverter
(
IEEE
, 2013 , Conference Paper)
Transformer-less photovoltaic (PV) inverters are the major functional units of modern grid-connected PV energy production systems. In general, two power conversion stages are required when low-voltage unregulated photovoltaic ...
Sensorless V/f control with MRAS speed estimator for a five-phase induction machine under open-circuit phase faults
(
IEEE
, 2013 , Conference Paper)
This paper introduces a sensorless scalar controller with MRAS speed estimator based on simple Proportional Resonant PR controllers to provide a disturbance-free operation to a five-phase induction machine under phase open ...